Air abrasion procedures can leave an accumulation of harmless, dusty particle debris in the patient's mouth, resulting in a gritty feeling that is eradicated by rinsing. Your dentist may require you to wear protective glasses during the procedure, and a rubber dam may be applied inside your mouth and around the tooth area being treated to serve as a particle barrier. To reduce dust build-up, the dentist or dental assistant may use a vacuum hose or a water spray technique while administering air abrasion.